"theOutdoorMonkey" wrote in message
om...
Hi:


I have started shopping for a good quality receiver for my home
theater/ home audio needs. I have a multi room speaker setup so I am
looking at receiver that can handle my multi-room setup without having
to buy an additional amp.


by the extra amp OR get a speaker switch



I am trying to make sense out of the High Current Vs High Voltage
theory that I have been geting from high end stero sales stores.

ignore it.

The
argument is that basically the high current system works better even
if its output per channel may be 75w/ch compared to low current high
power receiver that can put-out 120w/ch.

if the load (speakers) is the same for both systems the 120 W amp when
turned to max will supply more current to the load then the 75 W amp when it
is turned to max output.



I have read an article on how stuff works that tends to suggest the
opposite and that really threw me off. please see this link.
http://science.howstuffworks.com/question501.htm
The article suggests that it is more efficient to generate power from
high voltage and lower current than the other way around.

this is fine for the power grid and 70 volt PA type speaker systems. it will
just confuse the heck out of you if you try to relate it to home HI-FI

The argument is that power generated from high current tends to be
consumed by the wires during transmission.

not exactly... power losses in transmission lines are higher as current gets
higher therefore using high voltage enables the transfer of power to be
more efficient. current changes as the load changes.

with speakers your load is fixed and your transmission line (speaker wire)
resistance will be much less then the speakers nominal impedance.

I do not know if this
argument affects sound differently but i would appreciate anyone who
can shade some light on this.

i cant. when speakers shed light it means they caught on fire and will
probably need to be replaced.